Definition of sockdolager in English:

sockdolager

noun

US
informal
  • 1A forceful blow.

    • ‘His talent was delivering sockdolagers with his rifle butt.’
    • ‘Get busy, fellows, and let them have something in return for these two sockdolagers.’
  • 2An exceptional person or thing.

    • ‘Nothing would suit me better than to pull in some of the sockdolagers you'll find in that lake.’
    • ‘A knock on the head with a stick stilled him, and I had one of the genuine "sockdolagers" of the Indian Lake as my captive.’
    • ‘Here was another sockdolager; for, when I began to think about it, I could not remember a thing in the Constitution that authorized it.’

Origin

Mid 19th century: probably a fanciful formation from sock.

Pronunciation

sockdolager

/sɒkˈdɒlədʒə/